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-rw-r--r--lib/syntax_tools/src/erl_syntax.erl17
1 files changed, 10 insertions, 7 deletions
diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index 251c89a86c..1c0c532323 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -429,6 +429,7 @@
-record(tree, {type :: atom(),
attr = #attr{} :: #attr{},
data :: term()}).
+-type tree() :: #tree{}.
%% `wrapper' records are used for attaching new-form node information to
%% `erl_parse' trees.
@@ -444,18 +445,20 @@
-record(wrapper, {type :: atom(),
attr = #attr{} :: #attr{},
tree :: erl_parse()}).
+-type wrapper() :: #wrapper{}.
%% =====================================================================
--type syntaxTree() :: #tree{} | #wrapper{} | erl_parse().
+-type syntaxTree() :: tree() | wrapper() | erl_parse().
-type erl_parse() :: erl_parse:abstract_clause()
| erl_parse:abstract_expr()
| erl_parse:abstract_form()
| erl_parse:abstract_type()
| erl_parse:form_info()
- %% To shut up Dialyzer:
- | {bin_element, _, _, _, _}.
+ | erl_parse:af_binelement(term())
+ | erl_parse:af_generator()
+ | erl_parse:af_remote_function().
%% The representation built by the Erlang standard library parser
%% `erl_parse'. This is a subset of the {@link syntaxTree()} type.
@@ -8175,7 +8178,7 @@ meta_call(F, As) ->
%% =====================================================================
%% @equiv tree(Type, [])
--spec tree(atom()) -> #tree{}.
+-spec tree(atom()) -> tree().
tree(Type) ->
tree(Type, []).
@@ -8210,7 +8213,7 @@ tree(Type) ->
%% @see data/1
%% @see type/1
--spec tree(atom(), term()) -> #tree{}.
+-spec tree(atom(), term()) -> tree().
tree(Type, Data) ->
#tree{type = Type, data = Data}.
@@ -8266,7 +8269,7 @@ data(T) -> erlang:error({badarg, T}).
%% trees. <em>Attaching a wrapper onto another wrapper structure is an
%% error</em>.
--spec wrap(erl_parse()) -> #wrapper{}.
+-spec wrap(erl_parse()) -> wrapper().
wrap(Node) ->
%% We assume that Node is an old-school `erl_parse' tree.
@@ -8280,7 +8283,7 @@ wrap(Node) ->
%% `erl_parse' tree; otherwise it returns `Node'
%% itself.
--spec unwrap(syntaxTree()) -> #tree{} | erl_parse().
+-spec unwrap(syntaxTree()) -> tree() | erl_parse().
unwrap(#wrapper{tree = Node}) -> Node;
unwrap(Node) -> Node. % This could also be a new-form node.